The phrase "hint button" refers to a feature or tool that provides clues or suggestions to help you solve a problem or find the answer to a question. Full definition
If you do struggle with any of puzzles, there's a handy hint button at the bottom of the screen with an appropriate cool - down timer, however I found that I was rarely stuck on anything more than a few moments. (darkstation.com)
Every non-Hidden Object puzzle can be skipped and every Hidden Object puzzle can again be guided with a recharging hint button. (punkandlizard.com)
Beginners can find solace with single dropper levels, a quick tutorial, and even hint buttons during gameplay. (wp7connect.com)